include/Geant4/G4PreCompoundFragment.hh

0001 //
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0025 //
0026 //
0027 //  J. M. Quesada (August 2008).
0028 //  Based  on previous work by V. Lara
0029 //
0030 // Modified:
0031 // 03.09.2008 by J. M. Quesada for external choice of inverse
0032 //                    cross section option (default OPTxs=2)
0033 // 06.09.2008 by JMQ Also external choice has been added for
0034 //     superimposed Coulomb barrier (if useSICB=true, default false)
0035 // 20.08.2010 V.Ivanchenko added int Z and A and cleanup; added
0036 //                        G4ParticleDefinition to constructor
0037
0038 #ifndef G4PreCompoundFragment_h
0039 #define G4PreCompoundFragment_h 1
0040
0041 #include "G4VPreCompoundFragment.hh"
0042
0043 class G4PreCompoundFragment : public G4VPreCompoundFragment
0044 {
0045 public:
0046
0047   G4PreCompoundFragment(const G4ParticleDefinition*,
0048             G4VCoulombBarrier * aCoulombBarrier);
0049
0050   ~G4PreCompoundFragment() override = default;
0051
0052   // ================================================
0053   // Methods for calculating the emission probability
0054   // ================================================
0055
0056   // Calculates the total (integrated over kinetic energy) emission
0057   // probability of a fragment
0058   G4double CalcEmissionProbability(const G4Fragment& aFragment) override;
0059
0060   G4double SampleKineticEnergy(const G4Fragment& aFragment) override;
0061
0062   G4double CrossSection(G4double ekin);
0063
0064   G4double RecentXS() const { return recentXS; };
0065
0066   G4PreCompoundFragment(const G4PreCompoundFragment &right) = delete;
0067   const G4PreCompoundFragment&
0068   operator= (const G4PreCompoundFragment &right) = delete;
0069   G4bool operator==(const G4PreCompoundFragment &right) const = delete;
0070   G4bool operator!=(const G4PreCompoundFragment &right) const = delete;
0071
0072 protected:
0073
0074   virtual G4double
0075   ProbabilityDistributionFunction(G4double ekin,
0076                   const G4Fragment & aFragment) = 0;
0077
0078 private:
0079
0080   // This method performs integration for probability function over
0081   // fragment kinetic energy
0082   G4double IntegrateEmissionProbability(G4double low, G4double up,
0083                     const G4Fragment & aFragment);
0084
0085   G4double GetOpt0(G4double ekin) const;
0086
0087   G4int lastA{0};
0088
0089   G4double muu{0.0};
0090   G4double probmax{0.0};
0091   G4double recentXS{0.0};
0092 };
0093
0094 #endif